پديدآورندگان :
Tavallali M.Sadegh Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran 71987-74731/Department of Advanced Calculations, Chemical, Petroleum Polymer Engineering Research Center, Shiraz Branch, Islamic Azad University, Shiraz, Iran , Vaghefi Mahsa Department of Advanced Calculations, Chemical, Petroleum Polymer Engineering Research Center, Shiraz Branch, Islamic Azad University, Shiraz, Iran/Department of Electrical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran , Nejabat Gholam-Reza GR.Nejabat@iau.ac.ir Department of Polymer Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran 71987-74731/Department of Applied Researches, Chemical, Petroleum Polymer Engineering Research Center, Shiraz Branch, Islamic Azad University, Shiraz, Iran , Barforoushan Alireza Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran 71987-74731
كليدواژه :
Composite , PMMA bone cement , thermal analysis , k , means clustring
چكيده فارسي :
Various mixtures of bone cement having different quantities of solid phase (PMMA, BPO, BaSO4), liquid phase (MMA, N, N-Dimethyl toluidine, hydroquinone) and nano-silica filler are prepared. The mixtures are injected into 2.5 ml plastic syringes after mixing for 30 sec. The syringes are then set in an oven for 24 hrs at 37 ° C. During polymerization, maximum polymerization temperatures are recorded using a thermovision camera The cured samples are analyzed by TGA/DTG, and compressive and impact strengths are also obtained. All the results are anlysed by k-means clustring technique and it is found that the samples which are categorized according to their characteristics are devided into two groups of with filler and without filler.
